lpcc=zeros((s2-s1+1),12);
j=1;
for i=s1:s2
     z=y(i,:);
     a=lpc(z,10);
     a=real(a(2:11));
     cc=lpc2lpcc(a);
     cc1=cc(2:13);
     lpcc(j,:)=cc1';
     j=j+1;
 end
 dlpcc=zeros(size(lpcc));
for i=3:size(lpcc,1)-2;
     dlpcc(i,:)=-2*lpcc(i-2,:)-lpcc(i-1,:)+lpcc(i+1,:)+2*lpcc(i+2,:);
end
dlpcc=dlpcc/10;
dlpcc=dlpcc(3:size(dlpcc,1)-2,:);